Target Applications
• Home automation
Access control
Lighting control
Smart thermostats
Water heater control
Curtain/window blind control
Intruder alarms
Remote control
• Building automation
Building control and
monitoring
Building HVAC control
Fire/security
Retail pricing management
Security and access control
Usage data collection
• Healthcare
Fitness monitoring
Home healthcare
Institutional care
Medication asset
Patient monitoring
32-bit MCUs
Kinetis KW40Z/30Z/20Z
Wireless MCUs
Design with multi-mode (BLE/802.15.4) radio solutions
Overview
The Kinetis KW40Z/30Z/20Z (KW40Z) wireless MCU family is the first multi-mode radio in the
Kinetis portfolio. Integrating a Bluetooth® Low Energy v4.1 and IEEE® 802.15.4-2011 compliant
modem, it can support both standards and run in concurrent mode. The KW40Z MCU
integrates a buck-boost DC/DC converter, supporting a wide range of operating voltages from
0.9 V to 4.2 V, which significantly reduces the peak current in receive mode down to 6.5 mA
and transmit down to 8.4 mA. At the same time it delivers excellent link budget that ensures
the longest range of communication and high immunity to interference.
The KW40Z MCU offers Dual PAN support which allows the system to concurrently participate
in two 802.15.4 networks, such as Thread and ZigBee® or an 802.15.4 based network and
BLE, eliminating the need for multiple radios, reducing system complexity and ultimately cost.
Take advantage of the robust enablement package that includes the Freescale Bluetooth
Low Energy Host Stack, Thread, ZigBee, 802.15.4 MAC and Simple MAC (SMAC) software
protocol stacks, RTOS, development tools and IDE that are designed for use with Kinetis
KW40Z MCUs and fully integrated in the Kinetis Software Development Kit (KSDK).
Kinetis KW40Z/30Z/20Z Wireless MCUs Block Diagram
Kinetis KW40Z, KW30Z, KW20Z Wireless MCUs Block Diagram
Cortex-M0+
SRAM
20 K
FLASH
160 KB
2.4 GHz Radio
Packet Engine and FIFO
Control Registers
Cross Bar Switch (XBS)
Peripheral Bridge
MCG
Baseband IP
DMA
3x Timer/TPM
Periodic Interrupt Timer
Low Power Timer
2xSPI
GPIO with IRQ Capability
Cryptographic AES
Acceleration
Debug
Clock Management
Power Management
and DC-DC
(Buck and Boost Modes)
16-bit ADC
Temp Sensor
Battery Mon
UART 2xI2C CMT CMP
12-bit
DAC
True Random Number Generator
Touch Sense I/F
LNA
Frac-N PLL
PA
For more information about wireless connectivity products, software
and documentation, please visit freescale.com/wireless
Freescale, the Freescale logo and Kinetis are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. All other
product or service names are the property of their respective owners. ARM and Cortex are registered trademarks of ARM Limited (or
its subsidiaries) in the EU and/or elsewhere. All rights reserved. © 2015 Freescale Semiconductor, Inc.
Doc Number: KNTSKW40ZFS REV 0
Enablement
• Freedom development board platform
• USB dongle for sniffer applications or
connection to PC
• Bluetooth Low Energy v4.1 host stack and
application profiles
• 802.15.4 PHY/MAC support
• Thread network stack (end node only)
• ZigBee PRO stack and application profiles
• Full integration with Kinetis SDK
• Multiple reference designs
• Support for multiple RTOS’s including
Freescale MQX™ and FreeRTOS
• Supports IAR IDE
Kinetis KW40Z/30Z/20Z Family
Development Tools
Orderable part-numbers
Features Benefits
6.5 mA typical Rx current and 8.4 mA typical
Tx current with DC/DC activated
Significantly reduces the power consumption and
extends battery life
-91 dBm typical BLE sensitivity
-102 dBm typical 802.15.4 sensitivity
+5dBm maximum output power
High link budget improves range and lowers cost by
reducing the need for external power amplifiers
Excellent selectivity and blocking Significantly improves operation in harsh 2.4 GHz
environments such as condominiums and apartments
Dual-mode concurrent BLE and 802.15.4
radio capability
Supports concurrent operations between an 802.15.4
and BLE network lowering system cost and complexity
Dual PAN 802.15.4 support System can concurrently participate in two 802.15.4
based networks, eliminating the need for multiple radios
48 MHz ARM® Cortex®-M0+ core
On-chip 160 KB Flash memory
On-chip 20 KB SRAM
High performance low power core with adequate
memory to run BLE, Thread (end node) and ZigBee PRO
protocol stacks and application
AES-128 Accelerator
True Random Number Generator
Fast encryption/decryption utilizing hardware security
algorithms for network commissioning and transmissions
of supported protocols
Buck and Boost DC/DC working from 0.9 V
to 4.2 V
Supports a wide range of batteries from single alkaline
or coin-cell to Lithium-Ion
16-bit Analog-to-Digital Converter (ADC)
12-bit Digital-to-Analog Converter (DAC)
6-bit High Speed Analog Comparator (CMP)
Supports high performance on-chip analog at the MCU
level for sensor aggregation and other sophisticated
applications
Small 7x7 and 5x5 packages Smaller size and low component count reduces cost
–40 ˚C to +105 ˚C operational temperature
range
Ideal for industrial applications that need extended
temperature range
Compatible with Freescale Kinetis MCU
Family
Software protocol stacks, tools and IDE are compatible
with the Kinetis MCUs, and integrated in the Kinetis
software development kit (SDK)
Kit Number Description
FRDM-KW40Z Freescale Freedom Development Board, KW40Z, 2.4 GHz BLE and 802.15.4
wireless connectivity solutions
USB-KW40Z USB dongle for sniffer operations. KW40Z, 2.4 GHz BLE and 802.15.4 wireless
connectivity solutions
Part Number Sensitivity
(dBm) Feature Package
MKW40Z160VHT4 -91 dBm (BLE)/
-102 dBm (802.15.4)
Very low-power, concurrent
BLE and 802.15.4 operation
7x7 Laminate QFN 48-pin
MKW30Z160VHM4 -91 dBm Very low-power, BLE only 5x5 Laminate QFN 32-pin
MKW20Z160VHT4 -102 dBm Very low-power, 802.15.4 only 7x7 Laminate QFN 48-pin
